386BSD 0.1 development

[unix-history] / usr / src / lib / libcurses / mvwin.c

diff --git a/usr/src/lib/libcurses/mvwin.c b/usr/src/lib/libcurses/mvwin.c
index 6fd6563..69af8a9 100644 (file)
--- a/usr/src/lib/libcurses/mvwin.c
+++ b/usr/src/lib/libcurses/mvwin.c
@@ -1,17 +1,78 @@
+/*
+ * Copyright (c) 1981 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)mvwin.c    5.4 (Berkeley) 6/1/90";
+#endif /* not lint */
+

 # include      "curses.ext"
 
 /*
  * relocate the starting position of a window
 # include      "curses.ext"
 
 /*
  * relocate the starting position of a window

+ *

  */
 
 mvwin(win, by, bx)
 reg WINDOW     *win;
 reg int                by, bx; {
 
  */
 
 mvwin(win, by, bx)
 reg WINDOW     *win;
 reg int                by, bx; {
 

+       register WINDOW *orig;
+       register int    dy, dx;
+

        if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
                return ERR;
        if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
                return ERR;

-       win->_begy = by;
-       win->_begx = bx;
+       dy = by - win->_begy;
+       dx = bx - win->_begx;
+       orig = win->_orig;
+       if (orig == NULL) {
+               orig = win;
+               do {
+                       win->_begy += dy;
+                       win->_begx += dx;
+                       _swflags_(win);
+                       win = win->_nextp;
+               } while (win != orig);
+       }
+       else {
+               if (by < orig->_begy || win->_maxy + dy > orig->_maxy)
+                       return ERR;
+               if (bx < orig->_begx || win->_maxx + dx > orig->_maxx)
+                       return ERR;
+               win->_begy = by;
+               win->_begx = bx;
+               _swflags_(win);
+               _set_subwin_(orig, win);
+       }

        touchwin(win);
        return OK;
 }
        touchwin(win);
        return OK;
 }